Australian Open champion Aryna Sabalenka geared up for her title defence at the year's opening Grand Slam with a battling 4-6, 6-3, 6-2 win over Russian qualifier Polina Kudermetova in the final of the Brisbane International on Sunday. Sabalenka is bidding to become the first woman to lift three straight Australian Open trophies since Swiss Martina Hingis won from 1997 …
